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A New Dimming Algorithm for the Electrodeless Fluorescent Lamps

Jae-Eul YEON, Kyu-Min CHO, Hee-Jun KIM, Won-Sup CHUNG

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Summary :

In this paper, a new dimming algorithm for the electronic ballast of an electrodeless fluorescent lamp is proposed. The proposed method is based on the burst dimming method that controls the duty ratio for the two switches of the electronic ballast by intermittently modulated pulse signal. This paper presents a fully digital circuit using an erasable programmable logic device (EPLD). To verify the validity of the proposed method, the implemented control circuit was applied to the electronic ballast for a 100 W electrodeless fluorescent lamp. As a result, a dimming method with a wide illumination range from 5 to 100% was obtained.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E89-A No.6 pp.1540-1546
Publication Date
2006/06/01
Publicized
Online ISSN
1745-1337
DOI
10.1093/ietfec/e89-a.6.1540
Type of Manuscript
Special Section PAPER (Special Section on Papers Selected from 2005 International Technical Conference on Circuits/Systems, Computers and Communications (ITC-CSCC2005))
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